Guest-free hydroquinone (HQ) clathrate was synthesized by the gas-phase reaction between host HQ and guest CO 2 molecules, followed by removal of the CO 2 guests by controlled heating process. The H 2 storage capacity of the guest-free HQ clathrate is highly sensitive to the loading pressure; at 298 K, it was found to be 0.19 wt.% at 10 MPa and 0.38 wt.% at 35 MPa. In particular, the guest-free HQ clathrate also exhibits an extremely fast uptake and release of H 2 in a time scale of a few seconds.
Bibliographical noteFunding Information:
This work was supported by the New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (Grant No. 2009T100100988 ) funded by the Korea Government Ministry of Knowledge Economy . We also thank the support by the NRF Grant funded by the MEST ( 2008-313-D01285 ; 2008-0 061 974 ; 2010-0 007 026 ; M2AM06-2008-03 931 ; R11-2008-090-01 000-0 ) and the Korean Health Technology R&D Project by the Ministry for Health, Welfare & Family Affairs of Korea ( A101954 ).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry